/*
 * Copyright (c) 1999-2000, Eric Moon.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions, and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


// NullFilterAddOn.cpp

#include "NullFilterAddOn.h"

#include "AudioFilterNode.h"
#include "NullAudioOp.h"

#include <Entry.h>
#include <Debug.h>
#include <Catalog.h>
#include <cstring>
#include <cstdlib>

#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "CortexAddOnsNullFilter"

// -------------------------------------------------------- //
// _NullFilterNode
// -------------------------------------------------------- //

class _NullFilterNode :
	public	AudioFilterNode {
	typedef	AudioFilterNode _inherited;

public:
	virtual ~_NullFilterNode() {}
	_NullFilterNode(
		const char*									name,
		IAudioOpFactory*						opFactory,
		BMediaAddOn*								addOn=0) :
		BMediaNode(name),
		AudioFilterNode(name, opFactory, addOn) {}

	// be rather permissive about formats
	status_t getRequiredFormat(
		media_format&								ioFormat) {
		
		if(ioFormat.type != B_MEDIA_RAW_AUDIO)
			return B_MEDIA_BAD_FORMAT;
		ioFormat.u.raw_audio = media_raw_audio_format::wildcard;
		ioFormat.u.raw_audio.channel_count = 1;
		
		return B_OK;
	}
	
	status_t getPreferredFormat(
		media_format&								ioFormat) {
		status_t err = _inherited::getPreferredFormat(ioFormat);
		if(err < B_OK)
			return err;
			
		ioFormat.u.raw_audio.channel_count = 1;
		return B_OK;
	}
};


// -------------------------------------------------------- //
// instantiation function
// -------------------------------------------------------- //

extern "C" _EXPORT BMediaAddOn* make_media_addon(image_id image) {
	return new NullFilterAddOn(image);
}

// -------------------------------------------------------- //
// ctor/dtor
// -------------------------------------------------------- //

//NullFilterAddOn::~NullFilterAddOn() {}
NullFilterAddOn::NullFilterAddOn(image_id id) :
	BMediaAddOn(id) {}

// -------------------------------------------------------- //
// BMediaAddOn impl
// -------------------------------------------------------- //

status_t NullFilterAddOn::InitCheck(
	const char** out_failure_text) {
	return B_OK;
}
	
int32 NullFilterAddOn::CountFlavors() {
	return 1;
}

status_t NullFilterAddOn::GetFlavorAt(
	int32 n,
	const flavor_info** out_info) {
	if(n)
		return B_ERROR;
	
	flavor_info* pInfo = new flavor_info;
	pInfo->internal_id = n;
	pInfo->name = B_TRANSLATE("NullFilter");
	pInfo->info =
		B_TRANSLATE("NullFilter (empty test filter).\n"
		"by Eric Moon (8 September 1999)");
	pInfo->kinds = B_BUFFER_CONSUMER | B_BUFFER_PRODUCER | B_CONTROLLABLE;
	pInfo->flavor_flags = 0;
	pInfo->possible_count = 0;
	
	pInfo->in_format_count = 1;
	media_format* pFormat = new media_format;
	pFormat->type = B_MEDIA_RAW_AUDIO;
	pFormat->u.raw_audio = media_raw_audio_format::wildcard;
	pInfo->in_formats = pFormat;

	pInfo->out_format_count = 1;
	pFormat = new media_format;
	pFormat->type = B_MEDIA_RAW_AUDIO;
	pFormat->u.raw_audio = media_raw_audio_format::wildcard;
	pInfo->out_formats = pFormat;
	
	*out_info = pInfo;
	return B_OK;
}

BMediaNode* NullFilterAddOn::InstantiateNodeFor(
	const flavor_info* info,
	BMessage* config,
	status_t* out_error) {

	return new _NullFilterNode(
		"NullFilter",
		new NullAudioOpFactory(),
		this);
}

status_t NullFilterAddOn::GetConfigurationFor(
	BMediaNode* your_node,
	BMessage* into_message) {
	
	// no config yet
	return B_OK;
}


// END -- NullFilterAddOn.cpp --
